We research it, write it, draw it, check every picture, and build the Kindle and paperback files. Our Chrome extension fills in KDP. The last button is yours.
We research it, write it, draw it, check every picture, and build the Kindle and paperback files. Our Chrome extension fills in KDP. The last button is yours.
An animated drawing of the Brains.biz machine: an idea rolls from a desk into a funnel of search phrases, through a typewriter that writes the book, past a clothesline of pictures, to an owl who checks each picture and sends a bad one back to be drawn again, through a press that builds the Kindle and print files, past the Amazon KDP form filled in for you, to a Publish button that only you press, and onto a shelf of real books.
Brains.biz researches what shoppers search for, writes and illustrates the book, checks every picture, and builds the Kindle and paperback files. Then our Chrome extension fills in Amazon KDP. You press Publish.
One flow does every step. You read and change anything you like along the way, and nothing goes to Amazon until you press the button.
We read the Kindle store's own search suggestions for your topic and turn them into book ideas.
The whole book is written, with every picture planned in its place.
Checked: 89/100A picture judge checks hands, faces and the story. A weak picture is drawn again before you see it.
Margins, gutters, fonts and the spine width follow KDP's print rules.
The Chrome extension fills each KDP page. You check it and press Publish.
AI pictures go wrong in small ways: an extra finger, an arm that melts into a dog. Our judge looks at every picture against the story and scores it. Below the line, it is redrawn before it reaches your book.
Real pictures and real judge notes from two books made with Brains.biz: My Best Friend Is a Zombie Cheerleader and The Lighthouse Keeper's Cat.
Each character gets a reference picture first, and every page is drawn from it.
Keep any drawing, or ask for a new one for a single page without touching the rest.
A second pass turns each picture into bold line art made for crayons.
Typing a book into KDP takes a long evening: titles, a formatted description, seven keywords, a category tree, the AI questions, two uploads and a price. The extension does it in your own signed-in Chrome, page by page.
KDP opens in a new tab with your book ready to go.
Details, categories, the AI answers, the manuscript and cover, then pricing. A panel shows only what needs you.
The extension never presses it. The last step is always yours.
A coloring book is not a novel with fewer words. The whole process changes shape for each kind.
Short read-aloud lines, one picture per spread, the same characters on every page. Bilingual books too.
One bold subject per page, clean line art, single-sided pages so markers never bleed through.
One task per chapter, numbered steps, and a picture wherever words are not enough.
A planned story arc, real scenes and dialogue, a cover and ink-wash chapter plates.
Amazon prints a block of paper glued along one edge. Get the geometry wrong and text runs into the spine. Authors usually buy a desktop app for this step, like Vellum ($249.99, Mac only) or Atticus ($147). They format a book you already wrote. We lay out the book we wrote with you.
From 5 x 8 to 8.5 x 11. Each page is built at the exact size, never scaled.
The inside margin widens as the page count grows, the way KDP asks.
The margin depends on the page count, and the count depends on the margin. We solve both.
We read the finished PDF back and refuse a file that names a font it does not carry.
Even pages and the 24-page minimum, with blank pages added the way a real book does.
Worked out from the real paper thickness, with a wrap cover sized to match.
Every plan makes every kind of book and includes the Chrome extension. A free book is complete and watermarked, so you can judge it honestly.
Only need one? Buy a single book for $9, no subscription. Running a catalog? The Studio plan makes 75 books a month.
Yes. Every word, every picture and every royalty. We take no cut and claim no rights. Amazon pays you directly.
No. It fills the KDP pages in your own signed-in Chrome and shows you anything that needs a decision. You press Publish. It can press Save and Continue for you if you allow it.
The interior follows the KDP paperback rules: a margin that grows with the page count, mirrored margins, the 24-page minimum, and fonts we check are embedded. You still decide what to publish.
Most books are ready in under an hour. A book with many pictures can take longer, because every picture is checked and weak ones are drawn again. You can close the tab while it works.
Yes, and you should read it. Every paragraph, chapter title, caption and picture can be changed, and so can the Amazon listing. Then rebuild the files.
Yes. "Made with Brains.biz" runs across every page and picture. It is a complete book, so you can judge it. Unlock it for $9, or use any paid plan, to publish.
KDP asks whether AI made the text and pictures. The extension answers honestly for you, and you can change the answers. It does not stop you from publishing or selling.
Pick a topic. Read your finished book. When you like it, the extension takes it to Amazon.
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